Multi-Component Measurement:

H2S

The world’s safest tail gas analyzer.

» UV-Vis full-spectrum spectrophotometer

» Patented DEMISTER Probe with internal sulfur vapor removal

» No sample lines, no heat tracing

» Solid state system with no moving parts or filter wheels

» One-time calibration and Auto Zero thereafter (Auto Span available)

» Superior Off-Ratio range ( 100:1 < H2S/SO2 ratio < 1:20 )

» Ball valve allows probe removal during normal process operation

» Xenon light source with 5 years average lifespan

» Outdoor installation in hazardous area

» No toxic gas in analyzer enclosure — inherent safety for operators!

TRUSTED TAIL GAS ANALYZERS FROM APPLIED ANALYTICS™

Tail Gas / Air Demand AnalyzerTLG-837

SO2 COS CS2

optional

Applied Analytics™ [AAI] is a global manufacturer of industrial process analysis instruments.

Our systems are used primarily to measure real-time chemical concentrations in liquid or gas process streams, as well as physical parameters like color, calorific value, and purity.

AAI’s mission is to provide a true window into your process via an elegant and automated solution.

Applied Analytics was incorporated in 1994. All of our systems are manufactured in the USA.

Global Support & Installation Services

AAI’s specialized role as a manufacturer of process analysis instruments means that 100% of our focus and resources are permanently dedicated to the long-term performance of our solutions. Our certified field engineers proudly ensure that your AAI systems deliver decades of reliable process monitoring.

We maintain a comprehensive global support network. Our service com-mitment spans from rigorous pre-build application research to expedi-ent start-up, followed by fast support for the lifetime of your systems.

The Claus Process Analysis ...............................................................3TLG-837 Analyzer Unit Overview ...................................................4Optical Assembly & Principle of Operation ................................5The in situ DEMISTER Probe ............................................................6

Automatic Sulfur Removal ....................................................7The In Situ Measurement.......................................................7The Sample Return ..................................................................7

The World’s Safest Tail Gas Analyzer.............................................8Key Safety Features .................................................................8

Tail Gas Analysis by nova II Spectrophotometer ..................9Collateral Data ....................................................................... 10Measuring H2S and SO2 ...................................................... 10Off-Ratio Performance ........................................................ 12Optional Measurement of COS and CS2 ...................... 13Temperature Compensation ............................................. 13

Unattended Operation ................................................................... 14Utility Control Panel [Option] ....................................................... 14

» On-site installation assistance, commissioning, and system service by certified, experienced field engineers

» Technical support by phone and email for the lifetime of your Applied Analytics systems

» Equipment training at our facility or your site

[2]

CLAUSPROCESS

The Claus Process Analysis

H2S is toxic at 10 ppm, entirely lethal at 800 ppm, highly corrosive to equipment, flammable when in excess of 4.3% by volume in air, and unpleasantly odorous at a threshold of less than 1 ppb.

Unfortunately, H2S occurs abundantly in the world’s fossil fuel reserves. The sulfur recovery unit (SRU) of a refinery is dedicated to processing the H2S stripped from the hydrocarbon fuel through a series of operations that convert it into water and harmless elemental sulfur, which can be sold and repurposed in fertilizer, gunpowder, and more.

The Claus process is the industry standard for treating the H2S-rich “sour” gas . In the reaction furnace, H2S is combusted:

3H2S + 3/2O2 SO2 + H2O + 2H2S

A catalytic converter reacts the products of the combustion to create elemental sulfur in it various crystalline forms:

2H2S + SO2 2H2O + 3/XSX

As can be deduced from the 2nd reaction above, the typical Claus reaction runs most efficiently when the stoichiometric ratio of H2S to SO2 is controlled at 2:1. The 1st reaction above demonstrates that this ratio is controlled by adjusting the amount of available oxygen.

The efficiency of sulfur recovery therefore hinges on the “Air Demand” signal which informs the oxygen adjustment in the DCS. The Air Demand is calculated by multiplying the expression (2[SO2] - H2S) by a scaling factor. Obtaining the real-time Air Demand value requires continuous, reliable measurement of the H2S and SO2 concentrations in the Claus tail gas. Additionally, it can be valuable to measure COS and CS2 in the tail gas as high levels can be indicators of reduced efficiency or potential catalyst issues.

Applied Analytics’ TLG-837 provides continuous, ultra-safe measurement of all these critical parameters in the tail gas stream.

Other applications for Applied Analytics technology within the Sulfur Recovery Unit include:

Feed Forward — measuring H2S in the acid feed gas to the sulfur recovery unit to predict Air Demand [OMA H2S Analyzer]Sulfur Pit — measuring H2S and SO2 in pit gas to warn of toxic gas buildup and sulfur fires [OMA H2S Analyzer]

Typical SRU Claus Process SchematicAT# = analyzer location

[3]

TLG-837 Analyzer Unit Overview

The analyzer unit contains all of the system’s electronic components.

human machine interface (HMI)

nova II™ spectrophotometer

communications--

I/O board--

power supply

fiber opticcables

nova II™ SpectrophotometerThe core component of the TLG-837 Analyzer is the nova II. This device connects to the sample flow cell via fiber optic cables, con-tinuously pulsing a white light signal through the sample fluid and measuring absorbance in the returned signal.

Human Machine InterfaceThe TLG-837 is controlled by an industrial computer operating on the proprietary ECLIPSE™ runtime software. The touch-screen LCD displays real-time H2S concentration and any additional measured parameters with access to system settings.

Communication Electronics & Power SupplyThe standard TLG-837 is equipped with 1 galvanically isolated 4-20 mA analog output per measurement and 3 digital outputs. Additional communication protocols can be specified by the customer (inquire for available options).

Fiber OpticsThe continuously drawn process sample circulates through the flow cell disk in the probe as the fiber optic cables transmit the light signal through the flow cell path length and back to the nova II spectrophotometer.

[4]

Optical Assembly & Principle of Operation

The nova II Spectrophotometer measures the absorbance in the sample. This device is normally mounted inside the TLG-837 analyzer enclosure and transmits a light signal to and from the sample flow cell via fiber optic cables. The nova II housing contains the light source as well as the detector hardware.

xenon light source

holographicgrating

diode array

fiber optic cables

flow cell disk

o-ring

collimator

The nova II measurement cycle is virtually instantaneous thanks to the speed of light. For explanatory purposes, it helps to break the cycle into stages:

(1) The white light signal originates in the pulsed Xe lamp that functions as the light source.

(2) The signal travels via fiber optic cable to the flow cell disk in the probe. A collimator narrows the light beam.

(3) The signal travels directly across the optical path inside the flow cell disk, interacting with the continuously drawn tail gas

sample molecules.

(4) The signal exits the flow cell disk through a collimator, now containing the distinct absorbance imprint of the current

chemical composition of the tail gas.

(5) The signal travels via fiber optic cable to the nova II.

(6) The signal is dispersed by the holographic grating. Each differentiated wavelength is focused onto a designated

photodiode within the diode array. Much like sensors in a digital camera, each diode records the light intensity at its

assigned wavelength. The nova II provides this rich data to the HMI for real-time visualization of the absorbance spectrum.

cooling extension

steam tracing

[5]

probe retractor

probe head

cooling extension

ball valve

fiber optic cables

safety cable

The in situ DEMISTER Probe

Applied Analytics’ patented TLG-837 DEMISTER Probe is mounted directly on the process pipe. The physical measurement occurs inside the probe head, minimizing the sample transport time. Entrained sulfur vapor is removed from the sample as an internalized function.

This probe was designed to be lightweight and compact, so it’s easy to install and service by a single technician.

flange

angled inlet tip

Probe RetractorAllows easy removal by hand or power drill.

Probe HeadHouses flow cell disk where optical measurement occurs.

Cooling ExtensionProtects fiber optics from the heat of the sample gas.

ThermocoupleProvides probe temperature measurement to analyzer.

Safety CableSafety measure to prevent probe ejection.

Fiber Optic CablesTransmit light signal b/w probe and analyzer unit.

Full Port 2” Ball ValveProvides process seal so that probe can be inserted or removed without requiring process shutdown.

thermocouple lead

[6]

Automatic Sulfur Removal

Tail gas contains elemental sulfur which is quick to condense and plug mechanical cavities or obstruct optical signals. Online analysis of tail gas requires a sulfur removal mechanism in order to operate at all.

The DEMISTER Probe actively removes sulfur from the rising sample as an internalized function within the probe body. Recycling the steam generated by the Claus process, the probe controls the temperature along its body at a level where all elemental sulfur vapor in the rising sample condenses and drips back down to the process pipe. The sample that reaches the optical measurement cell in the probe head is virtually sulfur-free, posing no threat of plugging, freezing, or interference.

A B

E FG

H

C D

Demister Probe Legend

(A) High-Pressure Steam In(B) Steam Out(C) Light Signal In(D) Light Signal Out(E) Steam Out(F) Low-Pressure Steam In(G) Aspirator Air In(H) Sample Return Point(J) Sample Entry Point

( ) Liquid Sulfur Droplet( ) Sample Route

J

The In Situ Measurement

The point of interaction between the light signal and the sample gas occurs directly in the flow cell disk inside the probe head (C & D). The flow cell disk has a built-in high pressure steam channel (A & B) to heat the cell and ensure that any present sulfur remains gaseous—eliminating the possibility of condensation on the optical windows.

The Sample Return

An aspirator (G) creates a Venturi effect which pulls the sample up the probe body intake path, through the flow cell for analysis, and down the return line. The used sample is released back into the process pipe (H).

Innovative Sulfur Removal Principle

Inside the probe, an internal ‘demister’ chamber (concentric to the probe body) is fed with low pressure steam (see E & F). Since the LP steam is much cooler than the tail gas, this chamber has a cooling effect on the rising sample.

Elemental sulfur has the lowest condensation point of all of the components in the tail gas. Due to the internal probe temperature maintained by the LP steam, all of the elemental sulfur in the rising sample is selectively removed by condensation while a high-integrity sample continues upward for analysis in the probe head.

[7]

The World’s Safest Tail Gas Analyzer

Applied Analytics design centers on inherent safety. The major safety flaw of other tail gas analyzers is that they bring the toxic sample fluid into the analyzer enclosure for analysis. Not only does this practice expose the system electronics to higher corrosion effects, it also poses a lethal threat: if there is any leak in the instrument — especially inside a shelter — the human operator is placed at enormous risk.

The key difference between the TLG-837 and other tail gas analyzers is the use of fiber optic cables: we bring the light to the sample instead of bringing the sample to the light. The toxic sample only needs to circulate through the probe, and never enters the analyzer electronics enclosure.

Key Safety Features

» No danger of leaks inside the analyzer because the tail gas does not enter the analyzer enclosure

» No need for a shelter — system designed for outdoor environment

» Custom fiber length up to 6 meters allows for distance between analyzer and probe

» User can safely perform service on the analyzer while process is running — no exposure to sample gas

» Digital link (e.g. Modbus) provides additional process data during any upset conditions — personnel do not need to physically visit the analyzer during potentially dangerous situations

» Full port 2” ball valve seals/unseals the process, allowing user to isolate and remove probe while process is running

Gas-FreeAnalyzer

Enclosure

= sample transport route= wetted parts

[8]

Tail Gas Analysis by nova II Spectrophotometer

A conventional photometer measures a chemical’s absorbance at one pre-selected wavelength with one photodiode. This is known as ‘non-dispersive’ spectroscopy because it uses an optical filter or line source lamp to remove all wavelengths but the pre-selected measurement wavelength.

The nova II Spectrophotometer acquires a full absorbance spectrum using an array of 1,024 photodiodes. Each one of these diodes is assigned by the firmware to register light intensity at one specific energy (wavelength). This is known as ‘dispersive’ spec-troscopy because the each wavelength of light is measured individually and no data destruction occurs.

In the nova II, a full 200-800 nm UV-Vis absorbance spectrum is produced at 1 nm resolution:

200 nm 300 nm 400 nm 500 nm 600 nm 700 nm 800 nmUV Vis NIR

THE DIODE ARRAY

For tail gas analysis, the UV range of the full spectrum is utilized, while the remainder of the spectrum is very useful for reference wavelengths, background correction, and more.

nova II Overview

» Broad UV-Vis spectral response: 200-800 nanometers

» 1,024 photodiode array producing ~1nm resolution full spectrum

» Long-lifespan xenon light source with average 5 years b/w replacement

» CMOS analog circuitry for low noise and low power consumption

» Solid state device (no moving parts) for maximum stability

» Excellent performance in the low UV region

» No mirrors or filters used, minimizing stray light

» Ethernet interface for remote access

[9]

Collateral Data

Any single photodiode measurement is vulnerable to noise, signal saturation, or unexpected interference. This susceptibility to error makes a lone photodiode data point (as used by a photometer) an unreliable indicator of one chemical’s absorbance.

As accepted in the lab community for decades, the best way to neutralize this type of error is to use collateral data in the form of ‘confirmation wavelengths,’ i.e. many data points at many wavelengths instead of a single wavelength.

Consider the example of measuring SO2 in tail gas:

In the figures above, each diamond represents a single photodiode and data point. The nova II registers absorbance at each integer wavelength within the 265-295 nm measurement range and produces an SO2 absorbance curve. After being calibrated on a full spectrum of pure SO2, the TLG-837 knows the absorbance-concentration correlation for each measurement wavelength; the system can average the modeled concentration value from each wavelength to completely eradicate the effect of noise at any single photodiode.

The TLG-837 visualizes the SO2 absorbance curve in this manner and knows the expected relation of each data point to the others in terms of the curve’s structure. This curve analysis enables the system to automatically detect erroneous results at specific wave-lengths, such as when a single photodiode is saturated with light. The normal photometer, with a single data point, is completely incapable of internally verifying its measurement.

Measuring H2S and SO2

Conventional ‘multiwave’ photometers can be set up to measure multiple species. These systems are problematic because they require either (A) multiple, expensive line source lamps that emit the specific measurement wavelength for each species of analysis or (B) a rotating filter wheel which alternates the measurement wavelength by cycling between special component filters. Neither of these solutions is ideal for tail gas analysis because of the added cost of replacing multiple lamps or maintaining a high-RPM filter ‘chopper’ wheel.

0.3

0.25

0.2

0.1

0.15

265 295285280270

wavelength (nm)

abso

rban

ce (A

U)

284.5 285.5

wavelength (nm)

nova II Spectrophotometer Normal Photometer

0.5% SO2

0

0.05

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0.15

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265 270 275 280 285 290 295

Abso

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Wavelength (nm)

0.05

290275

0.5% SO2

0

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284.5 285.5Abso

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[10]

As illustrated above, the ECLIPSE software uses the full spectrum to de-convolute the total tail gas absorbance curve and isolate each chemical’s absorbance. The TLG-837 continuously solves a matrix of equations, where each equation is supplied by a single photodiode for its assigned wavelength in the form:

A’(x+y) = A’x + A’y = e’xbcx + e’ybcy

Where A’ is the absorbance at wavelength ‘, e’ is the molar absorptivity coefficient at wavelength ‘, c is concentration, and b is the path length of the flow cell. In the image above, three such equations (for 223nm, 224nm, and 225nm) are shown. In reality, the matrix includes one equation from every single integer wavelength in the measurement wavelength range.

This robust calculation, performed with each single reading, uses the power of confirmation wavelengths and statistical averaging to achieve much higher accuracy in multi-component measurement.

To incorporate the optional measurements of COS and CS2 (as detailed in a later section) as well as the rarely needed measure-ment of SV (elemental sulfur vapor), these additional variables are added to each equation within the matrix. For measurement of four or more components, only high resolution full-spectrum analysis can provide the necessary collateral data for sustained accuracy.

A225’(H2S + SO2) = e225’

H2SbcH2S + e225’SO2bcSO2

0

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Wavelength (nm)

H2S 1%

SO2 0.5%

Process

1.0

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220 300240

wavelength (nm)260 280

A224’(H2S + SO2) = e224’

H2SbcH2S + e224’SO2bcSO2

A223’(H2S + SO2) = e223’

H2SbcH2S + e223’SO2bcSO2

0

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220 230 240 250 260 270 280 290 300

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Wavelength (nm)

H2S 1%

SO2 0.5%

Process

H2S (1%)

SO2 (0.5%)

Process

View an animated demo of Multi-Component Analysis at:www.a-a-inc.com/multi-component/

The nova II Spectrophotometer does not depend on physical wavelength isolation or any other data-destructive method; as demonstrated in the previous section, filters are applied virtually by telling the software which measurement wavelengths (i.e. photodiodes) to utilize. This allows for a solid state TLG-837 system with a single light source.

All multi-component spectroscopy depends on the principle of additivity: according to Beer’s law, the absorbance at any wavelength of a mixture is equal to the sum of the absorbance of each chemical in the mixture at that wavelength. A multiwave photometer measuring 2 chemicals will perform a rudimentary “2 equations, 2 unknowns” calculation using 2 measurement wavelengths to output the separate absorbance/concentration of each chemical.

Advancing from this crude algebra, the nova II Spectrophotometer uses robust collateral data and statistical averaging to perform far more accurate multi-component measurement. Consider an example of the TLG-837 measuring H2S and SO2 simultaneously:

[11]

Off-Ratio Performance

Under various upset conditions, the H2S / SO2 ratio may deviate widely from 2:1 in either direction. Some modified Claus process designs, including Superclaus™, operate with a controlled ratio much higher than 2:1. A high-performing tail gas analyzer must therefore be able to remain accurate even when this ratio is well outside the expected range.

Some photometers claim good response to off-ratio conditions, but in practice are limited by the single-wavelength measurement. No single photodiode can be reliable for both high level H2S and low level H2S due of the unavoidable limits of light saturation (at too-low concentration) and over-absorbance (at too-high concentration). Additionally, the lack of confirmation wavelengths permits a noise level which cripples accuracy in certain off-ratio scenarios.

By virtue of full spectrum acquisition, the TLG-837 sustains the specified accuracy when H2S / SO2 ratio reaches as high as 100:1, or as low as 1:20. This huge range makes the system robust enough for virtually any process scenario.

The spectra below clearly demonstrate the importance of collateral data and absorbance curve analysis — especially in the high-lighted 210-240 nm region where the cross-absorbance occurs — for accuracy in off-ratio conditions. The TLG-837 measurement is not impacted by light saturation or over-absorbance at a single photodiode because confirmation wavelengths negate this error.

0

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H2S 10% SO2 1% TTL1

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H2S 0.2% SO2 2% TTL2

1.0

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10

8

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4abso

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210 310230wavelength (nm)

250 270 290

210 310230wavelength (nm)

250 270 290

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Wavelength (nm)

H2S 1%

SO2 0.5%

Process

H2S (10%)

SO2 (1%)

Process

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H2S 1%

SO2 0.5%

Process

H2S (0.2%)

SO2 (2.0%)

Process

10:1 H2S / SO2 Ratio Condition

1:10 H2S / SO2 Ratio Condition

[12]

0

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210 215 220 225 230 235 240 245 250

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Wavelength (nm)

H2S 1% SO2 0.5% COS 0.2% CS2 0.2% Process

2.0

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abso

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210 250215wavelength (nm)

235 240 245220 225 230

Optional Measurement of COS and CS2

COS and CS2 levels in tail gas can serve as indicators of sulfur recovery efficiency as well as early warnings for potential problems with catalysts. When measuring COS and CS2, the TLG-837 includes the absorbance of each compound as an additional unknown and solves a matrix of 4-variable equations. As with H2S and SO2, the system requires a one-time calibration using standard COS and CS2 gas mixtures in order to obtain the molar absorptivity coefficient at each wavelength (i.e. teach the analyzer the distinct absorbance curve of each pure compound).

A216’(H2S + SO2 + COS + CS2) = e216’

H2SbcH2S + e216’SO2bcSO2 + e216’

COSbcCOS + e216’CS2bcCS2

A217’(H2S + SO2 + COS + CS2) = e217’

H2SbcH2S + e217’SO2bcSO2 + e217’

COSbcCOS + e217’CS2bcCS2

A218’(H2S + SO2 + COS + CS2) = e218’

H2SbcH2S + e218’SO2bcSO2 + e218’

COSbcCOS + e218’CS2bcCS2

A219’(H2S + SO2 + COS + CS2) = e219’

H2SbcH2S + e219’SO2bcSO2 + e219’

COSbcCOS + e219’CS2bcCS2

H2S (1.0%)

SO2 (0.5%)

COS (0.2%)

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H2S 1%

SO2 0.5%

COS 0.2%

CS2 0.2%

Process

CS2 (0.2%)

Process

In this analysis, we use a version of the multi-component equation modified for 4 components:

A’(w+x+y+z) = A’w + A’x + A’y + A’z = e’wbcw + e’xbcx + e’ybcy + e’zbcz

where A’ is the absorbance at wavelength ‘, e’ is the molar absorptivity coefficient at wavelength ‘, c is concentration, and b is the path length of the flow cell. In the image above, four such equations (at 216nm, 217nm, 218nm, and 219nm) are shown. In reality, the matrix includes one equation from every single integer wavelength in the measurement wavelength range.

This matrix of data from many wavelengths provides far more accurate multi-component analysis within a spectral region that has heavily overlapping absorbances from each analyte.

Temperature Compensation

A thermocouple built into the probe head furnishes a continuous reading of the sample gas temperature. The ECLIPSE software uses this value to correct for sample temperature fluctuations in accordance with ideal gas law.

[13]

Unattended Operation

The TLG-837 only requires a one-time calibration during installation. Designed for unattended operation, the system only requires Auto Zero to maintain accuracy. This automated task normalizes the spectrophotometer reading on a zero-absorbance gas (e.g. nitrogen) on a user-scheduled basis in order to “blank” the instrument. When Auto Zero initiates, the ECLIPSE software automati-cally operates the SCS valves via relays to purge the flow cell with zero gas and save a new zero spectrum.

ECLIPSE normal runtime display ECLIPSE Auto Zero

In a typical usage profile, Auto Zero is set to run every 8 hours. The task requires approximately 120 seconds during which the mea-surement output is frozen. Under these settings, the TLG-837 can provide greater than 99.5% analyzer uptime.

Utility Control Panel [Option]

In order to regulate the pressure of the steam going to the DEMISTER Probe, the user can build their own panel or purchase the optional TLG-837 Utility Control Panel (UCP). Standard functions of the UCP include:

» Regulates LP steam pressure for demister chamber in probe body

» Regulates HP steam pressure for flow cell steam tracing in probe head

» Provides zero gas for Auto Zero sequence

» Provides span gas in case Auto Span is desired

» Controls aspirator flow rate

» Provides steam failure blowback feature: in the event of faulty steam utilities, the flow cell disk is sealed from the sample and the cell is purged with nitrogen from the UCP

With the features above, the UCP is a standardized panel engineered for turnkey integration.

Note: no part of UCP is wetted to sample.

[14]

TLG-837 SpecificationsNote: All performance specifications herein are subject to the assumption that all design for integration and sample conditioning is first approved by Applied Analytics.

Detection Method nova-II™ UV-Vis diode array spectrophotometer

Light Source Pulsed xenon lamp (average 5 year lifespan)

Fiber Optic Cables Standard: 1.8 meter 600 µm core fibers (qty=2)Longer lengths available.

Sample Introduction In Situ DEMISTER Probe

Accuracy & Repeatability Analyte / Parameter Typical Range Accuracy Repeatability

H2S 0-2% ±1% of measurement ±0.4%

SO2 0-2% ±1% of measurement ±0.4%

Air Demand User-determined ±1% of measurement ±0.4%

COS 0-2,000 ppm ±1% of measurement (±5% under 500 ppm) ±0.4%

CS2 0-2,000 ppm ±1% of measurement (±5% under 500 ppm) ±0.4%

Off-Ratio Range 100:1 > H2S/SO2 ratio > 1:20

Response Time (T10 - T90) 10 seconds

Zero Drift ±0.1% after 1hr warm-up, measured over 24hrs at constant ambient temperature

Sensitivity ±0.1% full scale

Noise ±0.004 AU at 220 nm

Analyzer Calibration One-time calibration at factory or site with certified calibration gas (never requires re-calibration)

Verification Simple verification with samples or neutral density filters

Ambient Temperature Standard: 0 to 40 °C (32 to 104 °F)w/ Temperature Control: -20 to 55 °C (-4 to 131 °F)

Environment Indoor/Outdoor — no shelter required

Wetted Materials Standard: Stainless Steel 316/316L, KalrezOther materials available.

Analyzer Enclosure Standard: wall-mounted NEMA 4X stainless steel type 304 EnclosureOther enclosures available.

Probe Material Standard: Stainless Steel 316/316LOther materials available

Size Analyzer: 24”” H x 20”” W x 8”” D (610mm H x 508mm W x 203mm D)Prove Average Dimensions: 36” length x 12“ widest diameter (914mm x 305mm)Optional Utility Control Panel: 24” H x 24” W x 8” D (610mm H x 610mm W x 203mm D)

Weight Analyzer: 32 lbs. (15 kg)Prove Average Weight: 29 lbs. (13 kg)Optional Utility Control Panel: 25 lbs. (11 kg)

Electrical Requirements 85 to 264 VAC 47 to 63 Hz

Power Consumption 45 watts

Human Machine Interface Touch-screen industrial controller with 640x480 LCD

Storage 32GB Solid State Drive

Software ECLIPSE™ Runtime Software

Standard Outputs 1 galvanically isolated 4-20mA analog output per measurement4 digital outputs for fault and relay control

Optional Outputs Modbus TCP/IP; RS-232; Fieldbus; Profibus; HART;

Instrument Air Requirement 70 psig (-40 °C dew point)

Steam Pressure Requirement 70 psig for DEMISTER chamber30-50 psig for probe blowback function75-100 psig for optional ball valve steam jacket

Certifications Class I, Division 2Class I, Division 1 — optionalATEX Exp II 2(2) GD — optionalAny other certification — please inquire

[15]

Standard TLG-837 Tail Gas AnalyzerNote: common options shown in red color.

A registered trademark of Applied Analytics Group BV. | www.a-a-inc.com

© 2013 Applied Analytics Group BV. Products or references stated may be trademarks or registered trademarks of their respective owners. All rights reserved. We reserve the right to make technical changes or modify this document without prior notice. Regarding purchase orders, agreed-upon details shall prevail.

LAST REVISION: FEBRUARY 2013MADE IN THE USA

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North America SalesApplied Analytics North America, Ltd.Houston, TX, USA | sales@appliedanalytics.us

Middle East SalesApplied Analytics Middle East (FZE)Sharjah, UAE | sales@appliedanalytics.ae

Asia Pacific SalesApplied Analytics Asia Pte. Ltd.Singapore | sales@appliedanalytics.com.sg

India SalesApplied Analytics (India) Pte. Ltd.Mumbai, India | sales@appliedanalytics.in

Brazil SalesApplied Analytics do BrasilRio de Janeiro, Brazil | sales@aadbl.com.br

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